Home / 7,856.76-11,787.12-2,926.56

Finding the Fourth Proportional to 7,856.76, 11,787.12 and 2,926.56

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Solution

The fourth proportional to 7,856.76, 11,787.12 and 2,926.56 is: 4,390.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.76 : 11,787.12 = 2,926.56 : x
  2. Step 2: Convert to fraction form
    7,856.76/11,787.12 = 2,926.56/x
  3. Step 3: Cross multiply
    7,856.76x = 11,787.12 × 2,926.56
  4. Step 4: Simplify right side
    7,856.76x = 34,495,713.91
  5. Step 5: Solve for x
    x = 34,495,713.91/7,856.76
  6. Step 6: Final answer
    x = 4,390.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.